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authorMichael Chan <mchan@broadcom.com>2009-06-08 18:14:44 -0700
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2009-06-09 10:22:45 -0500
commitcf4e6363859d30f24f8cd3e8930dbff399cc3550 (patch)
treebb2419cc519689664c34b21eff5ad4a882bceadb
parenta463696039f7097ce87c21db3cf5c16cdcb3850d (diff)
[SCSI] bnx2i: Add bnx2i iSCSI driver.
New iSCSI driver for Broadcom BNX2 devices. The driver interfaces with the CNIC driver to access the hardware. Signed-off-by: Anil Veerabhadrappa <anilgv@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat
-rw-r--r--drivers/scsi/Kconfig1
-rw-r--r--drivers/scsi/Makefile1
-rw-r--r--drivers/scsi/bnx2i/57xx_iscsi_constants.h155
-rw-r--r--drivers/scsi/bnx2i/57xx_iscsi_hsi.h1509
-rw-r--r--drivers/scsi/bnx2i/Kconfig7
-rw-r--r--drivers/scsi/bnx2i/Makefile3
-rw-r--r--drivers/scsi/bnx2i/bnx2i.h771
-rw-r--r--drivers/scsi/bnx2i/bnx2i_hwi.c2405
-rw-r--r--drivers/scsi/bnx2i/bnx2i_init.c438
-rw-r--r--drivers/scsi/bnx2i/bnx2i_iscsi.c2064
-rw-r--r--drivers/scsi/bnx2i/bnx2i_sysfs.c142
11 files changed, 7496 insertions, 0 deletions
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index 759e1507e63c..6a19ed9a1194 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -354,6 +354,7 @@ config ISCSI_TCP
http://open-iscsi.org
source "drivers/scsi/cxgb3i/Kconfig"
+source "drivers/scsi/bnx2i/Kconfig"
config SGIWD93_SCSI
tristate "SGI WD93C93 SCSI Driver"
diff --git a/drivers/scsi/Makefile b/drivers/scsi/Makefile
index 8795c309963e..25429ea63d0a 100644
--- a/drivers/scsi/Makefile
+++ b/drivers/scsi/Makefile
@@ -129,6 +129,7 @@ obj-$(CONFIG_SCSI_STEX) += stex.o
obj-$(CONFIG_SCSI_MVSAS) += mvsas/
obj-$(CONFIG_PS3_ROM) += ps3rom.o
obj-$(CONFIG_SCSI_CXGB3_ISCSI) += libiscsi.o libiscsi_tcp.o cxgb3i/
+obj-$(CONFIG_SCSI_BNX2_ISCSI) += libiscsi.o bnx2i/
obj-$(CONFIG_ARM) += arm/
diff --git a/drivers/scsi/bnx2i/57xx_iscsi_constants.h b/drivers/scsi/bnx2i/57xx_iscsi_constants.h
new file mode 100644
index 000000000000..2fceb19eb27b
--- /dev/null
+++ b/drivers/scsi/bnx2i/57xx_iscsi_constants.h
@@ -0,0 +1,155 @@
+/* 57xx_iscsi_constants.h: Broadcom NetXtreme II iSCSI HSI
+ *
+ * Copyright (c) 2006 - 2009 Broadcom Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation.
+ *
+ * Written by: Anil Veerabhadrappa (anilgv@broadcom.com)
+ */
+#ifndef __57XX_ISCSI_CONSTANTS_H_
+#define __57XX_ISCSI_CONSTANTS_H_
+
+/**
+* This file defines HSI constants for the iSCSI flows
+*/
+
+/* iSCSI request op codes */
+#define ISCSI_OPCODE_CLEANUP_REQUEST (7)
+
+/* iSCSI response/messages op codes */
+#define ISCSI_OPCODE_CLEANUP_RESPONSE (0x27)
+#define ISCSI_OPCODE_NOPOUT_LOCAL_COMPLETION (0)
+
+/* iSCSI task types */
+#define ISCSI_TASK_TYPE_READ (0)
+#define ISCSI_TASK_TYPE_WRITE (1)
+#define ISCSI_TASK_TYPE_MPATH (2)
+
+/* initial CQ sequence numbers */
+#define ISCSI_INITIAL_SN (1)
+
+/* KWQ (kernel work queue) layer codes */
+#define ISCSI_KWQE_LAYER_CODE (6)
+
+/* KWQ (kernel work queue) request op codes */
+#define ISCSI_KWQE_OPCODE_OFFLOAD_CONN1 (0)
+#define ISCSI_KWQE_OPCODE_OFFLOAD_CONN2 (1)
+#define ISCSI_KWQE_OPCODE_UPDATE_CONN (2)
+#define ISCSI_KWQE_OPCODE_DESTROY_CONN (3)
+#define ISCSI_KWQE_OPCODE_INIT1 (4)
+#define ISCSI_KWQE_OPCODE_INIT2 (5)
+
+/* KCQ (kernel completion queue) response op codes */
+#define ISCSI_KCQE_OPCODE_OFFLOAD_CONN (0x10)
+#define ISCSI_KCQE_OPCODE_UPDATE_CONN (0x12)
+#define ISCSI_KCQE_OPCODE_DESTROY_CONN (0x13)
+#define ISCSI_KCQE_OPCODE_INIT (0x14)
+#define ISCSI_KCQE_OPCODE_FW_CLEAN_TASK (0x15)
+#define ISCSI_KCQE_OPCODE_TCP_RESET (0x16)
+#define ISCSI_KCQE_OPCODE_TCP_SYN (0x17)
+#define ISCSI_KCQE_OPCODE_TCP_FIN (0X18)
+#define ISCSI_KCQE_OPCODE_TCP_ERROR (0x19)
+#define ISCSI_KCQE_OPCODE_CQ_EVENT_NOTIFICATION (0x20)
+#define ISCSI_KCQE_OPCODE_ISCSI_ERROR (0x21)
+
+/* KCQ (kernel completion queue) completion status */
+#define ISCSI_KCQE_COMPLETION_STATUS_SUCCESS (0x0)
+#define ISCSI_KCQE_COMPLETION_STATUS_INVALID_OPCODE (0x1)
+#define ISCSI_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE (0x2)
+#define ISCSI_KCQE_COMPLETION_STATUS_CTX_FREE_FAILURE (0x3)
+#define ISCSI_KCQE_COMPLETION_STATUS_NIC_ERROR (0x4)
+
+#define ISCSI_KCQE_COMPLETION_STATUS_HDR_DIG_ERR (0x5)
+#define ISCSI_KCQE_COMPLETION_STATUS_DATA_DIG_ERR (0x6)
+
+#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_UNEXPECTED_OPCODE (0xa)
+#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_OPCODE (0xb)
+#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_AHS_LEN (0xc)
+#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_ITT (0xd)
+#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_STATSN (0xe)
+
+/* Response */
+#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_EXP_DATASN (0xf)
+#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_PEND_R2T (0x10)
+#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_DATA_SEG_LEN_IS_ZERO (0x2c)
+#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_DATA_SEG_LEN_TOO_BIG (0x2d)
+#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_0 (0x11)
+#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_1 (0x12)
+#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_2 (0x13)
+#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_3 (0x14)
+#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_4 (0x15)
+#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_5 (0x16)
+#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_6 (0x17)
+
+/* Data-In */
+#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_REMAIN_RCV_LEN (0x18)
+#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_MAX_RCV_PDU_LEN (0x19)
+#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_F_BIT_ZERO (0x1a)
+#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_TTT_NOT_RSRV (0x1b)
+#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_DATASN (0x1c)
+#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_REMAIN_BURST_LEN (0x1d)
+
+/* R2T */
+#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_BUFFER_OFF (0x1f)
+#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_LUN (0x20)
+#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_R2TSN (0x21)
+#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_DESIRED_DATA_TRNS_LEN_0 (0x22)
+#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_DESIRED_DATA_TRNS_LEN_1 (0x23)
+#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_PEND_R2T_EXCEED (0x24)
+#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_TTT_IS_RSRV (0x25)
+#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_MAX_BURST_LEN (0x26)
+#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_DATA_SEG_LEN_NOT_ZERO (0x27)
+
+/* TMF */
+#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_REJECT_PDU_LEN (0x28)
+#define ISCSI
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-28 06:09:20 +0000
v class='add'>+
+/* IP/TCP processing errors: */
+#define ISCI_KCQE_COMPLETION_STATUS_TCP_ERROR_IP_FRAGMENT (0x40)
+#define ISCI_KCQE_COMPLETION_STATUS_TCP_ERROR_IP_OPTIONS (0x41)
+#define ISCI_KCQE_COMPLETION_STATUS_TCP_ERROR_URGENT_FLAG (0x42)
+#define ISCI_KCQE_COMPLETION_STATUS_TCP_ERROR_MAX_RTRANS (0x43)
+
+/* iSCSI licensing errors */
+/* general iSCSI license not installed */
+#define ISCSI_KCQE_COMPLETION_STATUS_ISCSI_NOT_SUPPORTED (0x50)
+/* additional LOM specific iSCSI license not installed */
+#define ISCSI_KCQE_COMPLETION_STATUS_LOM_ISCSI_NOT_ENABLED (0x51)
+
+/* SQ/RQ/CQ DB structure sizes */
+#define ISCSI_SQ_DB_SIZE (16)
+#define ISCSI_RQ_DB_SIZE (16)
+#define ISCSI_CQ_DB_SIZE (80)
+
+#define ISCSI_SQN_TO_NOTIFY_NOT_VALID 0xFFFF
+
+/* Page size codes (for flags field in connection offload request) */
+#define ISCSI_PAGE_SIZE_256 (0)
+#define ISCSI_PAGE_SIZE_512 (1)
+#define ISCSI_PAGE_SIZE_1K (2)
+#define ISCSI_PAGE_SIZE_2K (3)
+#define ISCSI_PAGE_SIZE_4K (4)
+#define ISCSI_PAGE_SIZE_8K (5)
+#define ISCSI_PAGE_SIZE_16K (6)
+#define ISCSI_PAGE_SIZE_32K (7)
+#define ISCSI_PAGE_SIZE_64K (8)
+#define ISCSI_PAGE_SIZE_128K (9)
+#define ISCSI_PAGE_SIZE_256K (10)
+#define ISCSI_PAGE_SIZE_512K (11)
+#define ISCSI_PAGE_SIZE_1M (12)
+#define ISCSI_PAGE_SIZE_2M (13)
+#define ISCSI_PAGE_SIZE_4M (14)
+#define ISCSI_PAGE_SIZE_8M (15)
+
+/* Iscsi PDU related defines */
+#define ISCSI_HEADER_SIZE (48)
+#define ISCSI_DIGEST_SHIFT (2)
+#define ISCSI_DIGEST_SIZE (4)
+
+#define B577XX_ISCSI_CONNECTION_TYPE 3
+
+#endif /*__57XX_ISCSI_CONSTANTS_H_ */
diff --git a/drivers/scsi/bnx2i/57xx_iscsi_hsi.h b/drivers/scsi/bnx2i/57xx_iscsi_hsi.h
new file mode 100644
index 000000000000..36af1afef9b6
--- /dev/null
+++ b/drivers/scsi/bnx2i/57xx_iscsi_hsi.h
@@ -0,0 +1,1509 @@
+/* 57xx_iscsi_hsi.h: Broadcom NetXtreme II iSCSI HSI.
+ *
+ * Copyright (c) 2006 - 2009 Broadcom Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation.
+ *
+ * Written by: Anil Veerabhadrappa (anilgv@broadcom.com)
+ */
+#ifndef __57XX_ISCSI_HSI_LINUX_LE__
+#define __57XX_ISCSI_HSI_LINUX_LE__
+
+/*
+ * iSCSI Async CQE
+ */
+struct bnx2i_async_msg {
+#if defined(__BIG_ENDIAN)
+ u8 op_code;
+ u8 reserved1;
+ u16 reserved0;
+#elif defined(__LITTLE_ENDIAN)
+ u16 reserved0;
+ u8 reserved1;
+ u8 op_code;
+#endif
+ u32 reserved2;
+ u32 exp_cmd_sn;
+ u32 max_cmd_sn;
+ u32 reserved3[2];
+#if defined(__BIG_ENDIAN)
+ u16 reserved5;
+ u8 err_code;
+ u8 reserved4;
+#elif defined(__LITTLE_ENDIAN)
+ u8 reserved4;
+ u8 err_code;
+ u16 reserved5;
+#endif
+ u32 reserved6;
+ u32 lun[2];
+#if defined(__BIG_ENDIAN)
+ u8 async_event;
+ u8 async_vcode;
+ u16 param1;
+#elif defined(__LITTLE_ENDIAN)
+ u16 param1;
+ u8 async_vcode;
+ u8 async_event;
+#endif
+#if defined(__BIG_ENDIAN)
+ u16 param2;
+ u16 param3;
+#elif defined(__LITTLE_ENDIAN)
+ u16 param3;
+ u16 param2;
+#endif
+ u32 reserved7[3];
+ u32 cq_req_sn;
+};
+
+
+/*
+ * iSCSI Buffer Descriptor (BD)
+ */
+struct iscsi_bd {
+ u32 buffer_addr_hi;
+ u32 buffer_addr_lo;
+#if defined(__BIG_ENDIAN)
+ u16 reserved0;
+ u16 buffer_length;
+#elif defined(__LITTLE_ENDIAN)
+ u16 buffer_length;
+ u16 reserved0;
+#endif
+#if defined(__BIG_ENDIAN)
+ u16 reserved3;
+ u16 flags;
+#define ISCSI_BD_RESERVED1 (0x3F<<0)
+#define ISCSI_BD_RESERVED1_SHIFT 0
+#define ISCSI_BD_LAST_IN_BD_CHAIN (0x1<<6)
+#define ISCSI_BD_LAST_IN_BD_CHAIN_SHIFT 6
+#define ISCSI_BD_FIRST_IN_BD_CHAIN (0x1<<7)
+#define ISCSI_BD_FIRST_IN_BD_CHAIN_SHIFT 7
+#define ISCSI_BD_RESERVED2 (0xFF<<8)
+#define ISCSI_BD_RESERVED2_SHIFT 8
+#elif defined(__LITTLE_ENDIAN)
+ u16 flags;
+#define ISCSI_BD_RESERVED1 (0x3F<<0)
+#define ISCSI_BD_RESERVED1_SHIFT 0
+#define ISCSI_BD_LAST_IN_BD_CHAIN (0x1<<6)
+#define ISCSI_BD_LAST_IN_BD_CHAIN_SHIFT 6
+#define ISCSI_BD_FIRST_IN_BD_CHAIN (0x1<<7)
+#define ISCSI_BD_FIRST_IN_BD_CHAIN_SHIFT 7
+#define ISCSI_BD_RESERVED2 (0xFF<<8)
+#define ISCSI_BD_RESERVED2_SHIFT 8
+ u16 reserved3;
+#endif
+};
+
+
+/*
+ * iSCSI Cleanup SQ WQE
+ */
+struct bnx2i_cleanup_request {
+#if defined(__BIG_ENDIAN)
+ u8 op_code;
+ u8 reserved1;
+ u16 reserved0;
+#elif defined(__LITTLE_ENDIAN)
+ u16 reserved0;
+ u8 reserved1;
+ u8 op_code;
+#endif
+ u32 reserved2[3];
+#if defined(__BIG_ENDIAN)
+ u16 reserved3;
+ u16 itt;
+#define ISCSI_CLEANUP_REQUEST_INDEX (0x3FFF<<0)
+#define ISCSI_CLEANUP_REQUEST_INDEX_SHIFT 0
+#define ISCSI_CLEANUP_REQUEST_TYPE (0x3<<14)
+#define ISCSI_CLEANUP_REQUEST_TYPE_SHIFT 14
+#elif defined(__LITTLE_ENDIAN)
+ u16 itt;
+#define ISCSI_CLEANUP_REQUEST_INDEX (0x3FFF<<0)
+#define ISCSI_CLEANUP_REQUEST_INDEX_SHIFT 0
+#define ISCSI_CLEANUP_REQUEST_TYPE (0x3<<14)
+#define ISCSI_CLEANUP_REQUEST_TYPE_SHIFT 14
+ u16 reserved3;
+#endif
+ u32 reserved4[10];
+#if defined(__BIG_ENDIAN)
+ u8 cq_index;
+ u8 reserved6;
+ u16 reserved5;
+#elif defined(__LITTLE_ENDIAN)
+ u16 reserved5;
+ u8 reserved6;
+ u8 cq_index;
+#endif
+};
+
+
+/*
+ * iSCSI Cleanup CQE
+ */
+struct bnx2i_cleanup_response {
+#if defined(__BIG_ENDIAN)
+ u8 op_code;
+ u8 status;
+ u16 reserved0;
+#elif defined(__LITTLE_ENDIAN)
+ u16 reserved0;
+ u8 status;
+ u8 op_code;
+#endif
+ u32 reserved1[3];
+ u32 reserved2[2];
+#if defined(__BIG_ENDIAN)
+ u16 reserved4;
+ u8 err_code;
+ u8 reserved3;
+#elif defined(__LITTLE_ENDIAN)
+ u8 reserved3;
+ u8 err_code;
+ u16 reserved4;
+#endif
+ u32 reserved5[7];
+#if defined(__BIG_ENDIAN)
+ u16 reserved6;
+ u16 itt;
+#define ISCSI_CLEANUP_RESPONSE_INDEX (0x3FFF<<0)
+#define ISCSI_CLEANUP_RESPONSE_INDEX_SHIFT 0
+#define ISCSI_CLEANUP_RESPONSE_TYPE (0x3<<14)
+#define ISCSI_CLEANUP_RESPONSE_TYPE_SHIFT 14
+#elif defined(__LITTLE_ENDIAN)
+ u16 itt;
+#define ISCSI_CLEANUP_RESPONSE_INDEX (0x3FFF<<0)
+#define ISCSI_CLEANUP_RESPONSE_INDEX_SHIFT 0
+#define ISCSI_CLEANUP_RESPONSE_TYPE (0x3<<14)
+#define ISCSI_CLEANUP_RESPONSE_TYPE_SHIFT 14
+ u16 reserved6;
+#endif
+ u32 cq_req_sn;
+};
+
+
+/*
+ * SCSI read/write SQ WQE
+ */
+struct bnx2i_cmd_request {
+#if defined(__BIG_ENDIAN)
+ u8 op_code;
+ u8 op_attr;
+#define ISCSI_CMD_REQUEST_TASK_ATTR (0x7<<0)
+#define ISCSI_CMD_REQUEST_TASK_ATTR_SHIFT 0
+#define ISCSI_CMD_REQUEST_RESERVED1 (0x3<<3)
+#define ISCSI_CMD_REQUEST_RESERVED1_SHIFT 3
+#define ISCSI_CMD_REQUEST_WRITE (0x1<<5)
+#define ISCSI_CMD_REQUEST_WRITE_SHIFT 5
+#define ISCSI_CMD_REQUEST_READ (0x1<<6)
+#define ISCSI_CMD_REQUEST_READ_SHIFT 6
+#define ISCSI_CMD_REQUEST_FINAL (0x1<<7)
+#define ISCSI_CMD_REQUEST_FINAL_SHIFT 7
+ u16 reserved0;
+#elif defined(__LITTLE_ENDIAN)
+ u16 reserved0;
+ u8 op_attr;
+#define ISCSI_CMD_REQUEST_TASK_ATTR (0x7<<0)
+#define ISCSI_CMD_REQUEST_TASK_ATTR_SHIFT 0
+#define ISCSI_CMD_REQUEST_RESERVED1 (0x3<<3)
+#define ISCSI_CMD_REQUEST_RESERVED1_SHIFT 3
+#define ISCSI_CMD_REQUEST_WRITE (0x1<<5)
+#define ISCSI_CMD_REQUEST_WRITE_SHIFT 5
+#define ISCSI_CMD_REQUEST_READ (0x1<<6)
+#define ISCSI_CMD_REQUEST_READ_SHIFT 6
+#define ISCSI_CMD_REQUEST_FINAL (0x1<<7)
+#define ISCSI_CMD_REQUEST_FINAL_SHIFT 7
+ u8 op_code;
+#endif
+#if defined(__BIG_ENDIAN)
+ u16 ud_buffer_offset;
+ u16 sd_buffer_offset;
+#elif defined(__LITTLE_ENDIAN)
+ u16 sd_buffer_offset;
+ u16 ud_buffer_offset;
+#endif
+ u32 lun[2];
+#if defined(__BIG_ENDIAN)
+ u16 reserved2;
+ u16 itt;
+#define ISCSI_CMD_REQUEST_INDEX (0x3FFF<<0)
+#define ISCSI_CMD_REQUEST_INDEX_SHIFT 0
+#define ISCSI_CMD_REQUEST_TYPE (0x3<<14)
+#define ISCSI_CMD_REQUEST_TYPE_SHIFT 14
+#elif defined(__LITTLE_ENDIAN)
+ u16 itt;
+#define ISCSI_CMD_REQUEST_INDEX (0x3FFF<<0)
+#define ISCSI_CMD_REQUEST_INDEX_SHIFT 0
+#define ISCSI_CMD_REQUEST_TYPE (0x3<<14)
+#define ISCSI_CMD_REQUEST_TYPE_SHIFT 14
+ u16 reserved2;
+#endif
+ u32 total_data_transfer_length;
+ u32 cmd_sn;
+ u32 reserved3;
+ u32 cdb[4];
+ u32 zero_fill;
+ u32 bd_list_addr_lo;
+ u32 bd_list_addr_hi;
+#if defined(__BIG_ENDIAN)
+ u8 cq_index;
+ u8 sd_start_bd_index;
+ u8 ud_start_bd_index;
+ u8 num_bds;
+#elif defined(__LITTLE_ENDIAN)
+ u8 num_bds;
+ u8 ud_start_bd_index;
+ u8 sd_start_bd_index;
+ u8 cq_index;
+#endif
+};
+
+
+/*
+ * task statistics for write response
+ */
+struct bnx2i_write_resp_task_stat {
+ u32 num_data_ins;
+};
+
+/*
+ * task statistics for read response
+ */
+struct bnx2i_read_resp_task_stat {
+#if defined(__BIG_ENDIAN)
+ u16 num_data_outs;
+ u16 num_r2ts;
+#elif defined(__LITTLE_ENDIAN)
+ u16 num_r2ts;
+ u16 num_data_outs;
+#endif
+};
+
+/*
+ * task statistics for iSCSI cmd response
+ */
+union bnx2i_cmd_resp_task_stat {
+ struct bnx2i_write_resp_task_stat write_stat;
+ struct bnx2i_read_resp_task_stat read_stat;
+};
+
+/*
+ * SCSI Command CQE
+ */
+struct bnx2i_cmd_response {
+#if defined(__BIG_ENDIAN)
+ u8 op_code;
+ u8 response_flags;
+#define ISCSI_CMD_RESPONSE_RESERVED0 (0x1<<0)
+#define ISCSI_CMD_RESPONSE_RESERVED0_SHIFT 0
+#define ISCSI_CMD_RESPONSE_RESIDUAL_UNDERFLOW (0x1<<1)
+#define ISCSI_CMD_RESPONSE_RESIDUAL_UNDERFLOW_SHIFT 1
+#define ISCSI_CMD_RESPONSE_RESIDUAL_OVERFLOW (0x1<<2)
+#define ISCSI_CMD_RESPONSE_RESIDUAL_OVERFLOW_SHIFT 2
+#define ISCSI_CMD_RESPONSE_BR_RESIDUAL_UNDERFLOW (0x1<<3)
+#define ISCSI_CMD_RESPONSE_BR_RESIDUAL_UNDERFLOW_SHIFT 3
+#define ISCSI_CMD_RESPONSE_BR_RESIDUAL_OVERFLOW (0x1<<4)
+#define ISCSI_CMD_RESPONSE_BR_RESIDUAL_OVERFLOW_SHIFT 4
+#define ISCSI_CMD_RESPONSE_RESERVED1 (0x7<<5)
+#define ISCSI_CMD_RESPONSE_RESERVED1_SHIFT 5
+ u8 response;
+ u8 status;
+#elif defined(__LITTLE_ENDIAN)
+ u8 status;
+ u8 response;
+ u8 response_flags;
+#define ISCSI_CMD_RESPONSE_RESERVED0 (0x1<<0)
+#define ISCSI_CMD_RESPONSE_RESERVED0_SHIFT 0
+#define ISCSI_CMD_RESPONSE_RESIDUAL_UNDERFLOW (0x1<<1)
+#define ISCSI_CMD_RESPONSE_RESIDUAL_UNDERFLOW_SHIFT 1
+#define ISCSI_CMD_RESPONSE_RESIDUAL_OVERFLOW (0x1<<2)
+#define ISCSI_CMD_RESPONSE_RESIDUAL_OVERFLOW_SHIFT 2
+#define ISCSI_CMD_RESPONSE_BR_RESIDUAL_UNDERFLOW (0x1<<3)
+#define ISCSI_CMD_RESPONSE_BR_RESIDUAL_UNDERFLOW_SHIFT 3
+#define ISCSI_CMD_RESPONSE_BR_RESIDUAL_OVERFLOW (0x1<<4)
+#define ISCSI_CMD_RESPONSE_BR_RESIDUAL_OVERFLOW_SHIFT 4
+#define ISCSI_CMD_RESPONSE_RESERVED1 (0x7<<5)
+#define ISCSI_CMD_RESPONSE_RESERVED1_SHIFT 5
+ u8 op_code;
+#endif
+ u32 data_length;
+ u32 exp_cmd_sn;
+ u32 max_cmd_sn;
+ u32 reserved2;
+ u32 residual_count;
+#if defined(__BIG_ENDIAN)
+ u16 reserved4;
+ u8 err_code;
+ u8 reserved3;
+#elif defined(__LITTLE_ENDIAN)
+ u8 reserved3;
+ u8 err_code;
+ u16 reserved4;
+#endif
+ u32 reserved5[5];
+ union bnx2i_cmd_resp_task_stat task_stat;
+ u32 reserved6;
+#if defined(__BIG_ENDIAN)
+ u16 reserved7;
+ u16 itt;
+#define ISCSI_CMD_RESPONSE_INDEX (0x3FFF<<0)
+#define ISCSI_CMD_RESPONSE_INDEX_SHIFT 0
+#define ISCSI_CMD_RESPONSE_TYPE (0x3<<14)
+#define ISCSI_CMD_RESPONSE_TYPE_SHIFT 14
+#elif defined(__LITTLE_ENDIAN)
+ u16 itt;
+#define ISCSI_CMD_RESPONSE_INDEX (0x3FFF<<0)
+#define ISCSI_CMD_RESPONSE_INDEX_SHIFT 0
+#define ISCSI_CMD_RESPONSE_TYPE (0x3<<14)
+#define ISCSI_CMD_RESPONSE_TYPE_SHIFT 14
+ u16 reserved7;
+#endif
+ u32 cq_req_sn;
+};
+
+
+
+/*
+ * firmware middle-path request SQ WQE
+ */
+struct bnx2i_fw_mp_request {
+#if defined(__BIG_ENDIAN)
+ u8 op_code;
+ u8 op_attr;
+ u16 hdr_opaque1;
+#elif defined(__LITTLE_ENDIAN)
+ u16 hdr_opaque1;
+ u8 op_attr;
+ u8 op_code;
+#endif
+ u32 data_length;
+ u32 hdr_opaque2[2];
+#if defined(__BIG_ENDIAN)
+ u16 reserved0;
+ u16 itt;
+#define ISCSI_FW_MP_REQUEST_INDEX (0x3FFF<<0)
+#define ISCSI_FW_MP_REQUEST_INDEX_SHIFT 0
+#define ISCSI_FW_MP_REQUEST_TYPE (0x3<<14)
+#define ISCSI_FW_MP_REQUEST_TYPE_SHIFT 14
+#elif defined(__LITTLE_ENDIAN)
+ u16 itt;
+#define ISCSI_FW_MP_REQUEST_INDEX (0x3FFF<<0)
+#define ISCSI_FW_MP_REQUEST_INDEX_SHIFT 0
+#define ISCSI_FW_MP_REQUEST_TYPE (0x3<<14)
+#define ISCSI_FW_MP_REQUEST_TYPE_SHIFT 14
+ u16 reserved0;
+#endif
+ u32 hdr_opaque3[4];
+ u32 resp_bd_list_addr_lo;
+ u32 resp_bd_list_addr_hi;
+ u32 resp_buffer;
+#define ISCSI_FW_MP_REQUEST_RESP_BUFFER_LENGTH (0xFFFFFF<<0)
+#define ISCSI_FW_MP_REQUEST_RESP_BUFFER_LENGTH_SHIFT 0
+#define ISCSI_FW_MP_REQUEST_NUM_RESP_BDS (0xFF<<24)
+#define ISCSI_FW_MP_REQUEST_NUM_RESP_BDS_SHIFT 24
+#if defined(__BIG_ENDIAN)
+ u16 reserved4;
+ u8 reserved3;
+ u8 flags;
+#define ISCSI_FW_MP_REQUEST_RESERVED1 (0x1<<0)
+#define ISCSI_FW_MP_REQUEST_RESERVED1_SHIFT 0
+#define ISCSI_FW_MP_REQUEST_LOCAL_COMPLETION (0x1<<1)
+#define ISCSI_FW_MP_REQUEST_LOCAL_COMPLETION_SHIFT 1
+#define ISCSI_FW_MP_REQUEST_UPDATE_EXP_STAT_SN (0x1<<2)
+#define ISCSI_FW_MP_REQUEST_UPDATE_EXP_STAT_SN_SHIFT 2
+#define ISCSI_FW_MP_REQUEST_RESERVED2 (0x1F<<3)
+#define ISCSI_FW_MP_REQUEST_RESERVED2_SHIFT 3
+#elif defined(__LITTLE_ENDIAN)
+ u8 flags;
+#define ISCSI_FW_MP_REQUEST_RESERVED1 (0x1<<0)
+#define ISCSI_FW_MP_REQUEST_RESERVED1_SHIFT 0
+#define ISCSI_FW_MP_REQUEST_LOCAL_COMPLETION (0x1<<1)
+#define ISCSI_FW_MP_REQUEST_LOCAL_COMPLETION_SHIFT 1
+#define ISCSI_FW_MP_REQUEST_UPDATE_EXP_STAT_SN (0x1<<2)
+#define ISCSI_FW_MP_REQUEST_UPDATE_EXP_STAT_SN_SHIFT 2
+#define ISCSI_FW_MP_REQUEST_RESERVED2 (0x1F<<3)
+#define ISCSI_FW_MP_REQUEST_RESERVED2_SHIFT 3
+ u8 reserved3;
+ u16 reserved4;
+#endif
+ u32 bd_list_addr_lo;
+ u32 bd_list_addr_hi;
+#if defined(__BIG_ENDIAN)
+ u8 cq_index;
+ u8 reserved6;
+ u8 reserved5;
+ u8 num_bds;
+#elif defined(__LITTLE_ENDIAN)
+ u8 num_bds;
+ u8 reserved5;
+ u8 reserved6;
+ u8 cq_index;
+#endif
+};
+
+
+/*
+ * firmware response - CQE: used only by firmware
+ */
+struct bnx2i_fw_response {
+ u32 hdr_dword1[2];
+ u32 hdr_exp_cmd_sn;
+ u32 hdr_max_cmd_sn;
+ u32 hdr_ttt;
+ u32 hdr_res_cnt;
+ u32 cqe_flags;
+#define ISCSI_FW_RESPONSE_RESERVED2 (0xFF<<0)
+#define ISCSI_FW_RESPONSE_RESERVED2_SHIFT 0
+#define ISCSI_FW_RESPONSE_ERR_CODE (0xFF<<8)
+#define ISCSI_FW_RESPONSE_ERR_CODE_SHIFT 8
+#define ISCSI_FW_RESPONSE_RESERVED3 (0xFFFF<<16)
+#define ISCSI_FW_RESPONSE_RESERVED3_SHIFT 16
+ u32 stat_sn;
+ u32 hdr_dword2[2];
+ u32 hdr_dword3[2];
+ u32 task_stat;
+ u32 reserved0;
+ u32 hdr_itt;
+ u32 cq_req_sn;
+};
+
+
+/*
+ * iSCSI KCQ CQE parameters
+ */
+union iscsi_kcqe_params {
+ u32 reserved0[4];
+};
+
+/*
+ * iSCSI KCQ CQE
+ */
+struct iscsi_kcqe {
+ u32 iscsi_conn_id;
+ u32 completion_status;
+ u32 iscsi_conn_context_id;
+ union iscsi_kcqe_params params;
+#if defined(__BIG_ENDIAN)
+ u8 flags;
+#define ISCSI_KCQE_RESERVED0 (0xF<<0)
+#define ISCSI_KCQE_RESERVED0_SHIFT 0
+#define ISCSI_KCQE_LAYER_CODE (0x7<<4)
+#define ISCSI_KCQE_LAYER_CODE_SHIFT 4
+#define ISCSI_KCQE_RESERVED1 (0x1<<7)
+#define ISCSI_KCQE_RESERVED1_SHIFT 7
+ u8 op_code;
+ u16 qe_self_seq;
+#elif defined(__LITTLE_ENDIAN)
+ u16 qe_self_seq;
+ u8 op_code;
+ u8 flags;
+#define ISCSI_KCQE_RESERVED0 (0xF<<0)
+#define ISCSI_KCQE_RESERVED0_SHIFT 0
+#define ISCSI_KCQE_LAYER_CODE (0x7<<4)
+#define ISCSI_KCQE_LAYER_CODE_SHIFT 4
+#define ISCSI_KCQE_RESERVED1 (0x1<<7)
+#define ISCSI_KCQE_RESERVED1_SHIFT 7
+#endif
+};
+
+
+
+/*
+ * iSCSI KWQE header
+ */
+struct iscsi_kwqe_header {
+#if defined(__BIG_ENDIAN)
+ u8 flags;
+#define ISCSI_KWQE_HEADER_RESERVED0 (0xF<<0)
+#define ISCSI_KWQE_HEADER_RESERVED0_SHIFT 0
+#define ISCSI_KWQE_HEADER_LAYER_CODE (0x7<<4)
+#define ISCSI_KWQE_HEADER_LAYER_CODE_SHIFT 4
+#define ISCSI_KWQE_HEADER_RESERVED1 (0x1<<7)
+#define ISCSI_KWQE_HEADER_RESERVED1_SHIFT 7
+ u8 op_code;
+#elif defined(__LITTLE_ENDIAN)
+ u8 op_code;
+ u8 flags;
+#define ISCSI_KWQE_HEADER_RESERVED0 (0xF<<0)
+#define ISCSI_KWQE_HEADER_RESERVED0_SHIFT 0
+#define ISCSI_KWQE_HEADER_LAYER_CODE (0x7<<4)
+#define ISCSI_KWQE_HEADER_LAYER_CODE_SHIFT 4
+#define ISCSI_KWQE_HEADER_RESERVED1 (0x1<<7)
+#define ISCSI_KWQE_HEADER_RESERVED1_SHIFT 7
+#endif
+};
+
+/*
+ * iSCSI firmware init request 1
+ */
+struct iscsi_kwqe_init1 {
+#if defined(__BIG_ENDIAN)
+ struct iscsi_kwqe_header hdr;
+ u8 reserved0;
+ u8 num_cqs;
+#elif defined(__LITTLE_ENDIAN)
+ u8 num_cqs;
+ u8 reserved0;
+ struct iscsi_kwqe_header hdr;
+#endif
+ u32 dummy_buffer_addr_lo;
+ u32 dummy_buffer_addr_hi;
+#if defined(__BIG_ENDIAN)
+ u16 num_ccells_per_conn;
+ u16 num_tasks_per_conn;
+#elif defined(__LITTLE_ENDIAN)
+ u16 num_tasks_per_conn;
+ u16 num_ccells_per_conn;
+#endif
+#if defined(__BIG_ENDIAN)
+ u16 sq_wqes_per_page;
+ u16 sq_num_wqes;
+#elif defined(__LITTLE_ENDIAN)
+ u16 sq_num_wqes;
+ u16 sq_wqes_per_page;
+#endif
+#if defined(__BIG_ENDIAN)
+ u8 cq_log_wqes_per_page;
+ u8 flags;
+#define ISCSI_KWQE_INIT1_PAGE_SIZE (0xF<<0)
+#define ISCSI_KWQE_INIT1_PAGE_SIZE_SHIFT 0
+#define ISCSI_KWQE_INIT1_DELAYED_ACK_ENABLE (0x1<<4)
+#define ISCSI_KWQE_INIT1_DELAYED_ACK_ENABLE_SHIFT 4
+#define ISCSI_KWQE_INIT1_KEEP_ALIVE_ENABLE (0x1<<5)
+#define ISCSI_KWQE_INIT1_KEEP_ALIVE_ENABLE_SHIFT 5
+#define ISCSI_KWQE_INIT1_RESERVED1 (0x3<<6)
+#define ISCSI_KWQE_INIT1_RESERVED1_SHIFT 6
+ u16 cq_num_wqes;
+#elif defined(__LITTLE_ENDIAN)
+ u16 cq_num_wqes;
+ u8 flags;
+#define ISCSI_KWQE_INIT1_PAGE_SIZE (0xF<<0)
+#define ISCSI_KWQE_INIT1_PAGE_SIZE_SHIFT 0
+#define ISCSI_KWQE_INIT1_DELAYED_ACK_ENABLE (0x1<<4)
+#define ISCSI_KWQE_INIT1_DELAYED_ACK_ENABLE_SHIFT 4
+#define ISCSI_KWQE_INIT1_KEEP_ALIVE_ENABLE (0x1<<5)
+#define ISCSI_KWQE_INIT1_KEEP_ALIVE_ENABLE_SHIFT 5
+#define ISCSI_KWQE_INIT1_RESERVED1 (0x3<<6)
+#define ISCSI_KWQE_INIT1_RESERVED1_SHIFT 6
+ u8 cq_log_wqes_per_page;
+#endif
+#if defined(__BIG_ENDIAN)
+ u16 cq_num_pages;
+ u16 sq_num_pages;
+#elif defined(__LITTLE_ENDIAN)
+ u16 sq_num_pages;
+ u16 cq_num_pages;
+#endif
+#if defined(__BIG_ENDIAN)
+ u16 rq_buffer_size;
+ u16 rq_num_wqes;
+#elif defined(__LITTLE_ENDIAN)
+ u16 rq_num_wqes;
+ u16 rq_buffer_size;
+#endif
+};
+
+/*
+ * iSCSI firmware init request 2
+ */
+struct iscsi_kwqe_init2 {
+#if defined(__BIG_ENDIAN)
+ struct iscsi_kwqe_header hdr;
+ u16 max_cq_sqn;
+#elif defined(__LITTLE_ENDIAN)
+ u16 max_cq_sqn;
+ struct iscsi_kwqe_header hdr;
+#endif
+ u32 error_bit_map[2];
+ u32 reserved1[5];
+};
+
+/*
+ * Initial iSCSI connection offload request 1
+ */
+struct iscsi_kwqe_conn_offload1 {
+#if defined(__BIG_ENDIAN)
+ struct iscsi_kwqe_header hdr;
+ u16 iscsi_conn_id;
+#elif defined(__LITTLE_ENDIAN)
+ u16 iscsi_conn_id;
+ struct iscsi_kwqe_header hdr;
+#endif
+ u32 sq_page_table_addr_lo;
+ u32 sq_page_table_addr_hi;
+ u32 cq_page_table_addr_lo;
+ u32 cq_page_table_addr_hi;
+ u32 reserved0[3];
+};
+
+/*
+ * iSCSI Page Table Entry (PTE)
+ */
+struct iscsi_pte {
+ u32 hi;
+ u32 lo;
+};
+
+/*
+ * Initial iSCSI connection offload request 2
+ */
+struct iscsi_kwqe_conn_offload2 {
+#if defined(__BIG_ENDIAN)
+ struct iscsi_kwqe_header hdr;
+ u16 reserved0;
+#elif defined(__LITTLE_ENDIAN)
+ u16 reserved0;
+ struct iscsi_kwqe_header hdr;
+#endif
+ u32 rq_page_table_addr_lo;
+ u32 rq_page_table_addr_hi;
+ struct iscsi_pte sq_first_pte;
+ struct iscsi_pte cq_first_pte;
+ u32 num_additional_wqes;
+};
+
+
+/*
+ * Initial iSCSI connection offload request 3
+ */
+struct iscsi_kwqe_conn_offload3 {
+#if defined(__BIG_ENDIAN)
+ struct iscsi_kwqe_header hdr;
+ u16 reserved0;
+#elif defined(__LITTLE_ENDIAN)
+ u16 reserved0;
+ struct iscsi_kwqe_header hdr;
+#endif
+ u32 reserved1;
+ struct iscsi_pte qp_first_pte[3];
+};
+
+
+/*
+ * iSCSI connection update request
+ */
+struct iscsi_kwqe_conn_update {
+#if defined(__BIG_ENDIAN)
+ struct iscsi_kwqe_header hdr;
+ u16 reserved0;
+#elif defined(__LITTLE_ENDIAN)
+ u16 reserved0;
+ struct iscsi_kwqe_header hdr;
+#endif
+#if defined(__BIG_ENDIAN)
+ u8 session_error_recovery_level;
+ u8 max_outstanding_r2ts;
+ u8 reserved2;
+ u8 conn_flags;
+#define ISCSI_KWQE_CONN_UPDATE_HEADER_DIGEST (0x1<<0)
+#define ISCSI_KWQE_CONN_UPDATE_HEADER_DIGEST_SHIFT 0
+#define ISCSI_KWQE_CONN_UPDATE_DATA_DIGEST (0x1<<1)
+#define ISCSI_KWQE_CONN_UPDATE_DATA_DIGEST_SHIFT 1
+#define ISCSI_KWQE_CONN_UPDATE_INITIAL_R2T (0x1<<2)
+#define ISCSI_KWQE_CONN_UPDATE_INITIAL_R2T_SHIFT 2
+#define ISCSI_KWQE_CONN_UPDATE_IMMEDIATE_DATA (0x1<<3)
+#define ISCSI_KWQE_CONN_UPDATE_IMMEDIATE_DATA_SHIFT 3
+#define ISCSI_KWQE_CONN_UPDATE_RESERVED1 (0xF<<4)
+#define ISCSI_KWQE_CONN_UPDATE_RESERVED1_SHIFT 4
+#elif defined(__LITTLE_ENDIAN)
+ u8 conn_flags;
+#define ISCSI_KWQE_CONN_UPDATE_HEADER_DIGEST (0x1<<0)
+#define ISCSI_KWQE_CONN_UPDATE_HEADER_DIGEST_SHIFT 0
+#define ISCSI_KWQE_CONN_UPDATE_DATA_DIGEST (0x1<<1)
+#define ISCSI_KWQE_CONN_UPDATE_DATA_DIGEST_SHIFT 1
+#define ISCSI_KWQE_CONN_UPDATE_INITIAL_R2T (0x1<<2)
+#define ISCSI_KWQE_CONN_UPDATE_INITIAL_R2T_SHIFT 2
+#define ISCSI_KWQE_CONN_UPDATE_IMMEDIATE_DATA (0x1<<3)
+#define ISCSI_KWQE_CONN_UPDATE_IMMEDIATE_DATA_SHIFT 3
+#define ISCSI_KWQE_CONN_UPDATE_RESERVED1 (0xF<<4)
+#define ISCSI_KWQE_CONN_UPDATE_RESERVED1_SHIFT 4
+ u8 reserved2;
+ u8 max_outstanding_r2ts;
+ u8 session_error_recovery_level;
+#endif
+ u32 context_id;
+ u32 max_send_pdu_length;
+ u32 max_recv_pdu_length;
+ u32 first_burst_length;
+ u32 max_burst_length;
+ u32 exp_stat_sn;
+};
+
+/*
+ * iSCSI destroy connection request
+ */
+struct iscsi_kwqe_conn_destroy {
+#if defined(__BIG_ENDIAN)
+ struct iscsi_kwqe_header hdr;
+ u16 reserved0;
+#elif defined(__LITTLE_ENDIAN)
+ u16 reserved0;
+ struct iscsi_kwqe_header hdr;
+#endif
+ u32 context_id;
+ u32 reserved1[6];
+};
+
+/*
+ * iSCSI KWQ WQE
+ */
+union iscsi_kwqe {
+ struct iscsi_kwqe_init1 init1;
+ struct iscsi_kwqe_init2 init2;
+ struct iscsi_kwqe_conn_offload1 conn_offload1;
+ struct iscsi_kwqe_conn_offload2 conn_offload2;
+ struct iscsi_kwqe_conn_update conn_update;
+ struct iscsi_kwqe_conn_destroy conn_destroy;
+};
+
+/*
+ * iSCSI Login SQ WQE
+ */
+struct bnx2i_login_request {
+#if defined(__BIG_ENDIAN)
+ u8 op_code;
+ u8 op_attr;
+#define ISCSI_LOGIN_REQUEST_NEXT_STAGE (0x3<<0)
+#define ISCSI_LOGIN_REQUEST_NEXT_STAGE_SHIFT 0
+#define ISCSI_LOGIN_REQUEST_CURRENT_STAGE (0x3<<2)
+#define ISCSI_LOGIN_REQUEST_CURRENT_STAGE_SHIFT 2
+#define ISCSI_LOGIN_REQUEST_RESERVED0 (0x3<<4)
+#define ISCSI_LOGIN_REQUEST_RESERVED0_SHIFT 4
+#define ISCSI_LOGIN_REQUEST_CONT (0x1<<6)
+#define ISCSI_LOGIN_REQUEST_CONT_SHIFT 6
+#define ISCSI_LOGIN_REQUEST_TRANSIT (0x1<<7)
+#define ISCSI_LOGIN_REQUEST_TRANSIT_SHIFT 7
+ u8 version_max;
+ u8 version_min;
+#elif defined(__LITTLE_ENDIAN)
+ u8 version_min;
+ u8 version_max;
+ u8 op_attr;
+#define ISCSI_LOGIN_REQUEST_NEXT_STAGE (0x3<<0)
+#define ISCSI_LOGIN_REQUEST_NEXT_STAGE_SHIFT 0
+#define ISCSI_LOGIN_REQUEST_CURRENT_STAGE (0x3<<2)
+#define ISCSI_LOGIN_REQUEST_CURRENT_STAGE_SHIFT 2
+#define ISCSI_LOGIN_REQUEST_RESERVED0 (0x3<<4)
+#define ISCSI_LOGIN_REQUEST_RESERVED0_SHIFT 4
+#define ISCSI_LOGIN_REQUEST_CONT (0x1<<6)
+#define ISCSI_LOGIN_REQUEST_CONT_SHIFT 6
+#define ISCSI_LOGIN_REQUEST_TRANSIT (0x1<<7)
+#define ISCSI_LOGIN_REQUEST_TRANSIT_SHIFT 7
+ u8 op_code;
+#endif
+ u32 data_length;
+ u32 isid_lo;
+#if defined(__BIG_ENDIAN)
+ u16 isid_hi;
+ u16 tsih;
+#elif defined(__LITTLE_ENDIAN)
+ u16 tsih;
+ u16 isid_hi;
+#endif
+#if defined(__BIG_ENDIAN)
+ u16 reserved2;
+ u16 itt;
+#define ISCSI_LOGIN_REQUEST_INDEX (0x3FFF<<0)
+#define ISCSI_LOGIN_REQUEST_INDEX_SHIFT 0
+#define ISCSI_LOGIN_REQUEST_TYPE (0x3<<14)
+#define ISCSI_LOGIN_REQUEST_TYPE_SHIFT 14
+#elif defined(__LITTLE_ENDIAN)
+ u16 itt;
+#define ISCSI_LOGIN_REQUEST_INDEX (0x3FFF<<0)
+#define ISCSI_LOGIN_REQUEST_INDEX_SHIFT 0
+#define ISCSI_LOGIN_REQUEST_TYPE (0x3<<14)
+#define ISCSI_LOGIN_REQUEST_TYPE_SHIFT 14
+ u16 reserved2;
+#endif
+#if defined(__BIG_ENDIAN)
+ u16 cid;
+ u16 reserved3;
+#elif defined(__LITTLE_ENDIAN)
+ u16 reserved3;
+ u16 cid;
+#endif
+ u32 cmd_sn;
+ u32 exp_stat_sn;
+ u32 reserved4;
+ u32 resp_bd_list_addr_lo;
+ u32 resp_bd_list_addr_hi;
+ u32 resp_buffer;
+#define ISCSI_LOGIN_REQUEST_RESP_BUFFER_LENGTH (0xFFFFFF<<0)
+#define ISCSI_LOGIN_REQUEST_RESP_BUFFER_LENGTH_SHIFT 0
+#define ISCSI_LOGIN_REQUEST_NUM_RESP_BDS (0xFF<<24)
+#define ISCSI_LOGIN_REQUEST_NUM_RESP_BDS_SHIFT 24
+#if defined(__BIG_ENDIAN)
+ u16 reserved8;
+ u8 reserved7;
+ u8 flags;
+#define ISCSI_LOGIN_REQUEST_RESERVED5 (0x3<<0)
+#define ISCSI_LOGIN_REQUEST_RESERVED5_SHIFT 0
+#define ISCSI_LOGIN_REQUEST_UPDATE_EXP_STAT_SN (0x1<<2)
+#define ISCSI_LOGIN_REQUEST_UPDATE_EXP_STAT_SN_SHIFT 2
+#define ISCSI_LOGIN_REQUEST_RESERVED6 (0x1F<<3)
+#define ISCSI_LOGIN_REQUEST_RESERVED6_SHIFT 3
+#elif defined(__LITTLE_ENDIAN)
+ u8 flags;
+#define ISCSI_LOGIN_REQUEST_RESERVED5 (0x3<<0)
+#define ISCSI_LOGIN_REQUEST_RESERVED5_SHIFT 0
+#define ISCSI_LOGIN_REQUEST_UPDATE_EXP_STAT_SN (0x1<<2)
+#define ISCSI_LOGIN_REQUEST_UPDATE_EXP_STAT_SN_SHIFT 2
+#define ISCSI_LOGIN_REQUEST_RESERVED6 (0x1F<<3)
+#define ISCSI_LOGIN_REQUEST_RESERVED6_SHIFT 3
+ u8 reserved7;
+ u16 reserved8;
+#endif
+ u32 bd_list_addr_lo;
+ u32 bd_list_addr_hi;
+#if defined(__BIG_ENDIAN)
+ u8 cq_index;
+ u8 reserved10;
+ u8